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nga-js: cache err:notfound, interpret addresses to improve performance a little

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FossilOrigin-Name: 9f29e09fbb02eb5b5b316693228b0c0a28dff2316be84c74f829cc6cc635620c
This commit is contained in:
crc 2019-11-20 21:03:07 +00:00
parent add2d8ac1c
commit 5aa1f0d0bb
1 changed files with 5 additions and 3 deletions
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8
nga-js/nga.js
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@ -89,6 +89,8 @@ var address = new Stack(ADDRESS_DEPTH);
var image = new Array(IMAGE_SIZE);
var vm = new Opcodes();
var instructions = new Array(vm.II + 1);
var notfound = 0;
var interpret = 0;
function rxPrepareVM() {
ip = 0;
@ -335,7 +337,6 @@ function execute(offset) {
var opcode;
address.sp = 1;
ip = offset;
var notfound = d_xt_for("err:notfound");
while (ip < IMAGE_SIZE) {
opcode = image[ip];
if (ip == notfound) {
@ -444,10 +445,9 @@ function d_class_for(name) {
function evaluate(s) {
if (s.length == 0)
return;
var i = d_xt_for("interpret");
string_inject(s, 1471);
data.push(1471);
execute(i);
execute(interpret);
}
function cls() {
@ -478,6 +478,8 @@ function unu(src) {
function go() {
rxPrepareVM();
loadInitialImage();
notfound = d_xt_for("err:notfound");
interpret = d_xt_for("interpret");
document.getElementById("console").innerHTML = "";
src = document.getElementById("input").value;
tokens = unu(src).match(/\S+/g);